Datasheet

Data Sheet ADP2164
Rev. A | Page 3 of 20
SPECIFICATIONS
VIN = PVIN = 3.3 V, EN high, SYNC high, T
J
= −40°C to +125°C, unless otherwise noted. Typical values are at T
J
= 25°C.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
VIN AND PVIN PINS
VIN Voltage Range VIN 2.7 6.5 V
PVIN Voltage Range PVIN 2.7 6.5 V
Quiescent Current I
VIN
No switching 895 1100 µA
Shutdown Current I
SHDN
VIN = PVIN = 6.5 V, EN = GND 9 12 µA
VIN Undervoltage Lockout Threshold UVLO VIN rising 2.6 2.7 V
VIN falling
2.4
2.5
V
OUTPUT CHARACTERISTICS Specified by the circuit in Figure 42
Load Regulation I
O
= 0 A to 4 A 0.05 %/A
Line Regulation I
O
= 2 A 0.05 %/V
FB PIN
FB Regulation Voltage V
FB
T
J
= −40°C to +125°C 0.591 0.6 0.609 V
FB Bias Current
I
FB
0.01
0.1
µA
SW PIN
High-Side On Resistance
1
VIN = PVIN = 3.3 V, I
SW
= 500 mA 35 52 70 mΩ
VIN = PVIN = 5 V, I
SW
= 500 mA 30 43 55 mΩ
Low-Side On Resistance
1
VIN = PVIN = 3.3 V, I
SW
= 500 mA 24 32 40 mΩ
VIN = PVIN = 5 V, I
SW
= 500 mA 20 29 35 mΩ
SW Peak Current Limit High-side switch, PVIN = 3.3 V 5 6.2 7.4 A
SW Maximum Duty Cycle Full frequency 100 %
SW Minimum On Time
2
Full frequency 100 ns
TRK PIN
TRK Input Voltage Range 0 600 mV
TRK to FB Offset Voltage
TRK = 0 mV to 500 mV
−15
+15
mV
TRK Input Bias Current 100 nA
FREQUENCY
Switching Frequency f
S
RT = VIN 1.08 1.2 1.32 MHz
RT = GND 540 600 660 kHz
RT = 91 kΩ 480 600 720 kHz
Switching Frequency Range 500 1400 kHz
RT Pin Input High Voltage 1.2 V
RT Pin Input Low Voltage 0.45 V
SYNC PIN
Synchronization Range 0.5 1.4 MHz
Minimum Pulse Width
100
ns
Minimum Off Time 100 ns
Input High Voltage 1.2 V
Input Low Voltage 0.4 V
PGOOD PIN
Power-Good Range FB rising threshold 105 110 115 %
FB rising hysteresis 2.5 %
FB falling threshold 85 90 95 %
FB falling hysteresis 2.5 %
Power-Good Deglitch Time From FB to PGOOD 16 Clock
cycles
Power-Good Leakage Current V
PGOOD
= 5 V 0.1 1 µA
Power-Good Output Low Voltage I
PGOOD
= 1 mA 170 220 mV